Custom keyboard Accelerator abbreviations for all menu items

Is your feature request related to a problem? Please describe. Currently it's a bit inefficient to pick a specific profile/option from the context menu since you have to look at it and select via a mouse

Describe the solution you'd like Allow custom accelerators so you could open and execute a profile via a sequence of , for example, CtrlA,G1 (activate extension, open a Group, select 1Profile just like you can right-click the extension button and press O to open options)

Currently the first shortcut doesn't open the extension menu, but launches a page saving operation instead, but that's another feature request https://github.com/gildas-lormeau/SingleFile/issues/1419

Describe alternatives you've considered (optional) Using cursor keys :)

Additional context (optional) N/a